"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : GUC
Case Name   : 修改enable_incremental_checkpoint为off，观察预期结果；
Create At   : 2020/11/23
Owner       : opentestcase018
Description :
    1、查询enable_incremental_checkpoint默认值;
    show enable_incremental_checkpoint;
    2、修改enable_incremental_checkpoint为off
    重启使其生效，建立mot表，观察预期结果。
    gs_guc set -N all -I all -c "enable_incremental_checkpoint=off"
    drop foreign table if exists test cascade;create foreign table test(x int);
    3、恢复默认值；
Expect      :
    1、查询默认值成功；
    2、修改参数成功，因mot表只支持增量检查点关闭状态下建表，
    此时建表成功，预期结果正常；
    3、恢复默认值成功；
History     :
    modified by opentestcase038,2023.02.13，修改设置参数的GUC命令避免备机参数值与
    主机参数值不同步的问题；
    2024/12/17：资源池化不支持建立mot表，已在测试套中注释
"""

import sys
import unittest
import os
from yat.test import macro
from yat.test import Node

sys.path.append(sys.path[0] + "/../")
from testcase.utils.Logger import Logger
from testcase.utils.Constant import Constant
from testcase.utils.CommonSH import CommonSH

logger = Logger()
commonsh = CommonSH('PrimaryDbUser')


class Guctestcase(unittest.TestCase):
    def setUp(self):
        logger.info(f"-----{os.path.basename(__file__)} start-----")
        self.userNode = Node('PrimaryDbUser')
        self.DB_ENV_PATH = macro.DB_ENV_PATH
        self.DB_INSTANCE_PATH = macro.DB_INSTANCE_PATH
        self.Constant = Constant()
        self.stopstartCmd = \
            f"source {macro.DB_ENV_PATH};gs_om -t stop && gs_om -t start"
        self.statusCmd = f"source {macro.DB_ENV_PATH};gs_om -t status --detail"
        self.table_name = "tab_wal_0028"

    def test_guc_wal(self):
        logger.info("-----step1:show enable_incremental_checkpoint;"
                    "expect:默认值on-----")
        sql_cmd = commonsh.execut_db_sql(
            f'''show enable_incremental_checkpoint;''')
        logger.info(sql_cmd)
        self.value = sql_cmd.splitlines()[-2].strip()

        logger.info("-----step2:方式一修改enable_incremental_checkpoint为off;"
                    "expect:设置成功-----")
        sql_cmd = \
            f"source {macro.DB_ENV_PATH};" \
            f"gs_guc set -N all -I all -c 'enable_incremental_checkpoint=off';"
        logger.info(sql_cmd)
        msg = self.userNode.sh(sql_cmd).result()
        logger.info(msg)
        self.assertIn(self.Constant.GSGUC_SUCCESS_MSG, msg)
        self.assertNotIn(self.Constant.SQL_WRONG_MSG[1], msg)

        logger.info("-----show enable_incremental_checkpoint结果为off-----")
        msg = self.userNode.sh(self.stopstartCmd).result()
        logger.info(msg)
        self.assertIn(self.Constant.START_SUCCESS_MSG, msg)
        self.assertNotIn(self.Constant.SQL_WRONG_MSG[1], msg)
        status = self.userNode.sh(self.statusCmd).result()
        logger.info(status)
        sql_cmd = commonsh.execut_db_sql(
            f'''show enable_incremental_checkpoint;''')
        logger.info(sql_cmd)
        self.assertIn(self.Constant.CLOSE_STATUS_MSG[0], sql_cmd)

        logger.info("-----step3:create foreign table;expect:建表成功-----")
        sql_cmd = commonsh.execut_db_sql(
            f'''drop FOREIGN table if exists {self.table_name} cascade;
            create FOREIGN table {self.table_name}(x int);''')
        logger.info(sql_cmd)
        self.assertNotIn(self.Constant.SQL_WRONG_MSG[1], sql_cmd)
        self.assertIn(self.Constant.CREATE_FOREIGN_SUCCESS_MSG, sql_cmd)

    def tearDown(self):
        logger.info("-----step3:清理环境;expect:清理成功-----")
        logger.info("-----drop table-----")
        sql_cmd = commonsh.execut_db_sql(
            f'''drop FOREIGN table if exists {self.table_name} cascade;''')
        logger.info(sql_cmd)
        logger.info("-----reset enable_incremental_checkpoint-----")
        commonsh.execute_gsguc('set',
                               self.Constant.GSGUC_SUCCESS_MSG,
                               f'enable_incremental_checkpoint={self.value}')
        commonsh.restart_db_cluster()
        is_started = commonsh.get_db_cluster_status()
        self.assertTrue("Degraded" in is_started or "Normal" in is_started)
        logger.info(f"-----{os.path.basename(__file__)} end-----")
